C++ Software Engineer – Modelling & Simulations

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Overview

We are seeking a Software Engineer to help create and improve large-scale models and simulations, supporting decision-makers in areas such as urban planning, transport, and infrastructure. You will work as part of a multidisciplinary team to develop high-performance simulation software, integrate data pipelines, and ensure that models can run efficiently at scale.

Key Responsibilities

  • Work with applied scientists to take models from prototype stage to production-ready software.
  • Develop and implement computational models for large-scale social and urban “Digital Twin” simulations.
  • Build and optimise data pipelines to extract, synthesise, and integrate data from various sources.
  • Scale and refine agent-based models incorporating real-world data and complex behaviours.
  • Track and improve model performance to enable greater complexity and realism.
  • Generalise and abstract existing models to allow re-use across different projects and geographies.
  • Contribute to the full development lifecycle, including testing, documentation, security, and performance.

What We’re Looking For

  • Strong experience coding in modern C++ (or a comparable systems programming language such as Rust).
  • Knowledge of low-level performance concepts such as SIMD, cache locality, and memory access patterns.
  • Python for scripting and prototyping.
  • Experience with agent-based modelling or entity-component-system (ECS) frameworks.
  • Background in writing production-quality code and scaling models to work with very large datasets.
  • Knowledge of distributed systems and data engineering (Kafka, pipelines, metadata management).
  • Experience with containerised deployments (Docker, Kubernetes, Helm).
  • Strong collaboration skills, with a focus on sharing knowledge and working as part of a team.
  • A holistic approach to software engineering that considers testing, documentation, performance, and security.

Seniority level

  • Not Applicable

Employment type

  • Contract

Job function

  • Engineering, Research, and Science

Industries

  • Software Development and Research Services
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Location:
London, England, United Kingdom
Salary:
£125,000 - £150,000
Job Type:
FullTime
Category:
IT & Technology

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